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Kommittébeteckning: SIS/TK 181 (Brandsäkerhet)
Källa: ISO
Svarsdatum: den 25 nov 2018
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ISO 5660-1 specifies a method for assessing the heat release rate and dynamic smoke production rate of specimen exposed in the horizontal orientation to controlled levels of irradiance with an external igniter. The heat release rate is determined by measurement of the oxygen consumption derived from the oxygen concentration and the flow rate in the combustion product stream. The time to ignition (sustained flaming) is also measured in this test.

The dynamic smoke production rate is calculated from measurement of the attenuation of a laser light beam by the combustion product stream. Smoke obscuration is recorded for the entire test, regardless of whether the specimen is flaming or not.

Kommittébeteckning: SIS/TK 181 (Brandsäkerhet)
Källa: CEN
Svarsdatum: den 27 nov 2018
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This part of ISO 11925 specifies a method of test for determining the ignitability of products by direct small flame impingement under zero impressed irradiance using vertically oriented test specimens.

Information on the precision of the test method is given in Annex A.